INFORMATION PROVIDED IN CONNECTION WITH OUTSTANDING DEBT (Details - Condensed Consolidating Statements of Comprehensive Income (Loss)) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ 1,390	$ 931	$ 2,327	$ 1,880
Other comprehensive income (loss)	2,873	(1,990)	6,420	(4,659)
Comprehensive income (loss)	4,263	(1,059)	8,747	(2,779)
Comprehensive income attributable to noncontrolling interests	291	(6)	580	5
Comprehensive income (loss) attributable to AIG	3,972	(1,053)	8,167	(2,784)
AIG (As Guarantor)
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	1,109	937	1,763	1,875
Other comprehensive income (loss)	2,863	(1,990)	6,404	(4,659)
Comprehensive income (loss)	3,972	(1,053)	8,167	(2,784)
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to AIG	3,972	(1,053)	8,167	(2,784)
Validus Holdings, Ltd
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	104	0	307	0
Other comprehensive income (loss)	0	0	1	0
Comprehensive income (loss)	104	0	308	0
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to AIG	104	0	308	0
AIGLH
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	1,266	447	1,954	1,153
Other comprehensive income (loss)	2,418	(1,510)	5,218	(3,465)
Comprehensive income (loss)	3,684	(1,063)	7,172	(2,312)
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to AIG	3,684	(1,063)	7,172	(2,312)
AIGLH | Scenario, Previously Reported [Member]
Condensed Financial Statements, Captions [Line Items]
Other comprehensive income (loss)				3,400
Other Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	1,467	683	2,472	1,743
Other comprehensive income (loss)	7,299	(651)	18,982	20,909
Comprehensive income (loss)	8,766	32	21,454	22,652
Comprehensive income attributable to noncontrolling interests	291	(6)	580	5
Comprehensive income (loss) attributable to AIG	8,475	38	20,874	22,647
Other Subsidiaries | Scenario, Previously Reported [Member]
Condensed Financial Statements, Captions [Line Items]
Other comprehensive income (loss)				14,000
Reclassification and Eliminations
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	(2,556)	(1,136)	(4,169)	(2,891)
Other comprehensive income (loss)	(9,707)	2,161	(24,185)	(17,444)
Comprehensive income (loss)	(12,263)	1,025	(28,354)	(20,335)
Comprehensive income attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to AIG	$ (12,263)	$ 1,025	$ (28,354)	$ (20,335)